Marginal-stop device for type-writers.



G. A. SMITH. MARGINAL STOP DEVICE FOR TYPE WRITERS. APPLIUATION FILEDAPR. 22, 190s.

961 54% Patented June M, 1910.

W/T/V/ESSES I ,11A/VENTO@ gm. Q1 www@ ,MW Q5@- G. ASE'TH, MARGINAL STOPDEVICE FGF. TYEE WRITERSt .APPLIGATIOIT FILED APR. 22, 1908.

.Patented June M, E91@ 2 SHEETS-SFQEQBT 2.

' consists et' stops ar lefhhand end thereo. (lne end be regulated at.or when lifting a pair oli entran GEORGE A. SMITH, e2@ new Y., FOURTHSTo Janne vv meuneries?,

ONE-HUNDRED-AND-FQUBTHS BROOKLYN, NEVI YORK.

s ,Hl il d i. n* il vajilla MARGINALSTG? BEVCE R- TYPEJJJRTIERSspecification o Letters Patent.

:n La er a atenten o une la, itltl.

Application filed lpril 22, 190. Serial No. 425,455.

To all whom t may concern:

Be it known that l, Geenen it. lai'ru, citizen of the United States ofAnnales, a resident of the eity, county, and State el' New York, haveinvented certain new and useful Improvei'nents in Triax-ginal-Stop vicesfor 'Twelfth-ners, o which the follow-- ing is a specification.

This invention relates to marginal stopsY for typewriter carriages, bymeans ot' which the length ot' the lines are regulated,

of the margin or both sides in the superior manner to be more fullydescribed hereinA after and pointed out in the claims.

In the accompanying drawings, l`igure l is a front elevation of anordinary typewriter carriage to which my marginal stops are applied,parts being eut away to better show the mechanism beneath. Fig. Z is aplan View of the same. Fig. 3 is a trans verse section through themachinelor the purposeof showing how one ol the stops is oerated fromthe key-hoard. Fig. e, a rear e evation of the same iti whieh dottedlines show the changed position of the parts, when the mechanism in thepreceding figures is thrown into action. Fig. 5 is a detail, penspeetive View of one of the stops. Figs. il and 'i' are inverted detailviews of the inan- `ually adjustable stop mechanism showing the parts indifferent positions.

The carriage 10 is mounted to slide and tilt on a horizontal rail 11 atthe rear, and may loe driven hy any suitable means whieh it is notthought neeesary to show because such means are common and wellunderstood, and form no part olf this inventioii.

19 represents an `ordinary cylindrical. platen. In front ofthis )latenand below its axis is located a long, horizont-al ratchet bar 13 pivotedat its opposite ends in arms 34. This bar is provided With a rearwardlyextending handle 14 at its right-hand end by means et which it can heturned on its longitudinal axis when shitting theearria lingers er hold18 which hold and guide the writing paper on .the platen through theaetion or a spring 15 coiled around the rah/filet har. 13 aal; the el'the 4and it 'anged so that the width l the length of the hues eau alaelied to the arm and the free spring is )ar il. 'lhese paper guidingand end te the l holding lin gers lf3 are made integral with me stops 18and l5', the lioriner limiting l leit lo right, and the latter limitingit from the lengti ol the trin of the carriage from right lo loft,whereby any desired width of marginal space maylie loll upon either sidees alle nag Cach' stop held in sliding adjustment ou tirera et liar lilby means et a rectangular. sleeve Z-l whieh embraces the hai'Atheliottom et" the sleeve a pawl l? is )riveted at 1T so that` itsupturued end will. engage aT vertical ratchet 1G on the trout theeetuthe spring-aetuated ratchet bar 13.

Sis the carriage. moves from right to lett, when writing, il, earriesthe stop 18 along with it until the stop Einnes in Contact with areleasahle stop or hull'er Jlate 20, as seen in dotted lines in. Fig. l,which stops it aty any predeterinined Point thereby limiting the lengthof the line and allowing the space desired on the righlfhand side ot thepage. `ll'hen it is necessary to prolong the lint` he- Lvond its normallengtl'i in order to eomjlete a wei-il or i'or other reasons, thebutler-plato 2O is made to yield to the Contact et the Wl', and to necarried along' with the Stop stop lt'lOlll required distance. yl'hisresult is .'herl through the medium ot' a 'stop or hul er rehaisingdevice Consisting olf a hey-lever 30, l'ulerumed at lll, (Fig. il) whichlever when de ressed pulls down with it a vertieal delent har the. upperend et which acts; as a detent to holdl the builer plate 2() and stopthe carriage normally in the position shown in l'ull lines in Fig. 4',so that (he plate will serve as a bull'er whirh cooperates with the stop1H in stopping the progress olfthe carriage. 'The withdrawal ot thisdetent bar 25 releases the hullierqilate 20 which is then carried alonglongitudinulli7 ly the carriage the required excess distance, as shown:in dotted lines in Fig. 4. rl`he huil plate is secured to the verticalwall Z1 or tonplaie 22, hy screws 225 which hrough hm'izonlal oblongslots Q-'l havequal to the additional travel required. a spring lorretraeting the huiles-plate wh i the step and the carriage L new line.rlhe are tiroi "nt ...rar sis'ts the butlerllll() tlm right-hand endsplate 2O ttimugli tlie medium si ai cushion ing spijtig 28, the fr@ endl@f which bears against the edge of Recess 26 in 'the topplate 22, @n thaopposite side 0f the datent, liar 25 is a @am 2S sitzmtecljust belw itsupper @ml and normally battling against the edge of tlite top-plate'llflin tl'te datent bai" is pulletltlwn by .key-level' 30, this @am 29`Slitltes fiwa'itl and. uiitlr the pltite 22, as seen in dotted lines,tlm-mela); the end the tlfatailt lizu pmjecting alim-' 1 the plateenough to tilt. :further: advance of tlm butler-plate 2t by mining inContact with a Shoulder 29 farther hazel: 0n the un der sidi; of theplate $10 at the limer and of a recess 20 which i'eceives'tlia and 0fthe (latent bar. @Vllen the cariage is fetunecl to start a new linfa,the stop 1S ieleases the butler-plate 2C', which plate is then returnedby the i'eti'acting spring 27 until stopped at. of slots 2l, theiebyliliM the detent 225 which is automatically forced up :mtl itetumecl teits original position by i s riin 32 actitig rectly upon the under sitle0I i'eleasing keylevezr 30.

The construct-imi o eration of the right-hand .marginal stop mving beentlescribed, the matins :tot regulating the leftliand marginal Space willnow lie explained.

The left-hand stop 18 (Flu. l) i6 c0n- Stzucted aixactly like theright-liaiicl stop 18 exceptingtlmt its sleeve 33, and paw/l l? extendtoward the left,so that the pim/l will engage ratchet l which has itsteeth facial? in a. directinn oppositc- 'to that ot' the rightlmzidratchet 16. .lfm tlm present instance, as Scan in Fig. 2, the pzxwl l?is Shown lr'cld ont of engagmnent @rating the and of by means at :ilaterally projecting @am 17 having it straight outer edge which bearsagflriinsty the 'time of tlm titiller-plate 20, tlzmeliy turning thepawl on its pivot t' anti liting it clem' si the ratchet. am?, holding'it mit of action. This stop 18 can be manually set at, any positionthroughout the length of its ratchat i6, and the width of the vleft-handmargin regulated accordingly, for it isapptti'wt that, the

l ll y n l shoulder lil", side taf the butler-p vitli tlm left-limit?stop the cm'iige iig" 'i in traveling twin .W han@ may"u tended dotted na tj/'pew a cai'iage, of a extending l' f being pi'myided wi upapel-holding ,t nested Wit-li the iin ward the pla-ten, an the lattea'and lift th.. platen, a bullet' @mha rest the movement of ttitlirettioiis, and manual T for .Releasing the butter 2. ln u typewriter,tlm

il, t :il 5 me 1e addi-tima Y lli@ cl l tight. '"flie leftie stillfuit-lm exntue Clim stop .l

as y stati cmfiliination -Wittl T' miiiietl tlieeby ally tlitbreif, mtltlilfa stps lia/ving =zision-spiiig mi e. the .ngei's te on the tmltesrock igfats E an tizi@ y me steps t@ :iin e Carling@ in .lsstli lj@pemted slavices hence the stops. tsmloination with 'butler-plate, ofmeans im holding the plate,

means for releasing ,ratchet ln Carriage in lroat t :1 tension springadjustable on t the plate, tt carriage, :i jouiniilefl in die twine ofthe tti@ platen and 'having -Qi more cnriiage @inps im? cairyiiig 7 lieholding and guiding* tingeis, devices @n th@ stops t engage the om',

mtl means for halflmg saitltlevices out 0f @agir vement with the ratchetbar.

Signed at New York city, this 6th da.; of April, 1908.

Sciiizormmt.

